Title:
BUILT-IN MICRO-INTERFACE AMMOXIMATION REACTION SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/208200
Kind Code:
A1
Abstract:
The present invention provides a built-in micro-interface ammoximation reaction system and method, the system comprising an oximation reactor, a reaction supernatant buffer tank, a tert-butanol recovery tower, an extraction tank, a water washing separator, and a water extraction tower, wherein an external circulation device is provided outside the oximation reactor; a micro-interface unit is provided inside the oximation reactor; an oxime aqueous solution outlet is provided at the bottom of the tert-butanol recovery tower; the extraction tank is provided with a liquid inlet, a light phase outlet, and a water phase outlet; the liquid inlet is connected to the oxime aqueous solution outlet; the light phase outlet is connected to the water washing separator for washing a toluene oxime solution; and the water phase outlet is connected to the water extraction tower for extracting and recovering the oxime in the water phase. In the built-in micro-interface ammoximation reaction system of the present invention, the provision of the micro-interface unit inside the reactor increases the mass transfer area between ammonia gas and a liquid phase material and lowers the reaction temperature and pressure, thereby inhibiting the occurrence of side reactions and increasing oximation reaction efficiency.
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Inventors:
ZHANG ZHIBING (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
Application Number:
PCT/CN2020/092778
Publication Date:
October 21, 2021
Filing Date:
May 28, 2020
Export Citation:
Assignee:
NANJING YANCHANG REACTION TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
C07C249/04; B01J19/00; C07C251/44; C07D201/06; C07D201/16; C07D223/10
Foreign References:
| CN102675176A | 2012-09-19 | |||
| CN210045215U | 2020-02-11 | |||
| CN205948418U | 2017-02-15 |
Other References:
ZHANG ZHIBING; TIAN HONGZHOU; ZHANG FENG; ZHOU ZHENG: "Overview of Microinterface Intensification in Multiphase Reaction Systems", CIESC JOURNAL, vol. 69, no. 1, 6 November 2017 (2017-11-06), CN , pages 44 - 49, XP009526633, ISSN: 0438-1157, DOI: 10.11949/j.issn.0438-1157.20171400
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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